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back to article Fujitsu-Siemens punts small biz storage blade

Earlier this decade, as the blade server form factor went commercial, the consensus was that local storage was only necessary on blade servers for operating system images and that any data customers need would be plunked on storage area networks that are linked to the blades. Some even went so far as to suggest that blades …

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  1. Gordon Fecyk

    Booting from SANs? At 1/10th the performance of local disk?

    I don't know how fast the high end SANs go, but an EMC AX100 combo with QLogic cards managed 1/10th the bandwidth of a local SCSI disk, even using QLogic cards in pairs. I gauged this with a rather unscientific file copy test and the Performance Monitor on Windows Server.

    I wouldn't want to keep my pagefile on a SAN volume at that rate, let alone my OS.

    Are other SAN systems faster? Or am I running into a bottleneck with the fibre channel connection or Brocade switch, part of the combo? Sure the AX100 is only SATA, but that can't be the bottleneck by itself.

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